Search Results Use the search box below to revise your search, or start a new search. Studies (3) Variables Publications Your query returned 3 studies. Series results are grouped under the most relevant study. Ungroup series results to view all results. Sort by: Title A-Z Released/Updated Time Period Most Cited in ICPSR Bib. 1. National Education Longitudinal Study, 1988: Second Follow-Up (1992) (ICPSR 6448) United States Department of Education. National Center for Education Statistics 2. National Health Interview Survey, 1991: Environmental Health Supplement (ICPSR 6051) United States Department of Health and Human Services. Centers for Disease Control and Prevention. National Center for Health Statistics 3. Swedish Adoption/Twin Study on Aging (SATSA), 1984, 1987, 1990, 1993, 2004, 2007, and 2010 (ICPSR 3843) Pedersen, Nancy L.